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Expired Canadian patentCanada

Apparatus and method for producing sterile slush and heated sterile liquid

CA 2017534 C · Owner: Saniserv Inc. · Inventors: Templeton, Robert Joe

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A surgical slush system for producing a sterile semi-frozen slush from a sterile liquid. The system includes a slush generating unit having a cabinet with a plurality of louvres for air circulation a basin at the, top of the cabinet, a refrigeration means inside the cabinet for cooling the basin to a temperature below the freezing point of the sterile liquid, and a heating means for heating the basin to a temperature above the freezing point of the sterile liquid. A sterilized drape covers the basin. The drape is impervious to the sterile liquid and is sufficiently flexible to conform substantially to ~ the interior shape of the basin with the sterile liquid being directly contained by the …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed May 25, 1990 and granted July 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 25, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 25, 1990
GrantedJuly 25, 2000
Term endedMay 25, 2010
Patent numberCA 2017534 C
Classification (IPC)F25C1/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMay 25, 1990Patent grantedJuly 25, 2000Term endedMay 25, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.